Classification
600 - Technology
320 - Political science
11
330 - Economics
11
900 - History & geography
5
620 - Engineering & allied operations
3
630 - Agriculture & related technologies
2
700 - The arts; fine & decorative arts
2
800 - Literature & rhetoric
2
333 - Economics of land & energy
1
363 - Other social problems & services
1
380 - Commerce, communications & transportation
1